McEwen shares surge 10.34% after-hours after announcing Nevada gold expansion, acquisition, and strong drill results.

McEwen Mining (MUX) surged 10.34% in after-hours trading following the announcement of strategic expansion at its Nevada Gold Bar mine complex. The company reported significant drill results, including a 44.2-meter section grading 5.55 g/t gold, and finalized an all-share acquisition of Golden Lake Exploration to consolidate adjacent projects. The 60% premium offered in the acquisition and the potential for resource expansion along a 1.6-kilometer fault structure reinforced investor optimism about the mine’s long-term viability. While a prior report noted a 6.9% drop in shares on January 7, 2026 (outside the relevant timeframe), the immediate catalyst for the after-hours rally was the combination of high-grade drill results and strategic land consolidation.